Can I ask how waterproof the home-made frame bags are? I'm kinda obsessed with the idea of making my own after buying a Revelate tangle bag (which is awesome, but water still sneaks in during storms...RIP smartphone).

The frame bags could have been easier to make with a sewing machine. I sewed them by hand, and it took forever. I realize now that it could've just been two pieces of material: two triangles and velcro in the right spots.

They've been great. Been using them for months now -- just make sure they aren't too 'fat' so that they can puff out and rub on the chain.

The seat bags are really easy if you can find a similar dry bag to these ones with the seams around the edges: